Title:
IODONITRILES AS CHAIN TRANSFER AGENTS IN THE MANUFACTURE OF PERFLUOROPOLYMERS
Document Type and Number:
WIPO Patent Application WO1997022636
Kind Code:
A3
Abstract:
PCT No. PCT/US96/19645 Sec. 371 Date Jun. 10, 1998 Sec. 102(e) Date Jun. 10, 1998 PCT Filed Dec. 12, 1996 PCT Pub. No. WO97/22636 PCT Pub. Date Jun. 26, 1997Iodoperfluoroalkylnitriles are useful as chain transfer agents in the free radical polymerization of vinyl monomers to form perfluoropolymers. These nitrites provide end groups, which may take part in a cross-linking reaction, if desired, and also have a relatively low toxicity. The resulting perfluoropolymers are useful as molding resins and elastomers, particularly for parts where good chemical resistance and/or high temperature resistance are desirable.
Inventors:
HUNG MING-HONG (US)
LOGOTHETIS ANESTIS LEONIDAS (US)
YANG ZHEN-YU (US)
LOGOTHETIS ANESTIS LEONIDAS (US)
YANG ZHEN-YU (US)
Application Number:
PCT/US1996/019645
Publication Date:
August 21, 1997
Filing Date:
December 12, 1996
Export Citation:
Assignee:
DU PONT (US)
HUNG MING HONG (US)
LOGOTHETIS ANESTIS LEONIDAS (US)
YANG ZHEN YU (US)
HUNG MING HONG (US)
LOGOTHETIS ANESTIS LEONIDAS (US)
YANG ZHEN YU (US)
International Classes:
C07C303/20; C07C309/80; C08F2/38; C08F14/18; (IPC1-7): C08F14/18
Foreign References:
EP0124378A1 | 1984-11-07 | |||
US4089804A | 1978-05-16 | |||
US5504248A | 1996-04-02 | |||
EP0617057A1 | 1994-09-28 |
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